CN110813112B - Processing method of structural adhesive with water absorption function - Google Patents
Processing method of structural adhesive with water absorption function Download PDFInfo
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- CN110813112B CN110813112B CN201911072428.6A CN201911072428A CN110813112B CN 110813112 B CN110813112 B CN 110813112B CN 201911072428 A CN201911072428 A CN 201911072428A CN 110813112 B CN110813112 B CN 110813112B
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- barrel
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- 239000000853 adhesive Substances 0.000 title claims abstract description 40
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 111
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 55
- 238000003756 stirring Methods 0.000 claims abstract description 55
- 229920005989 resin Polymers 0.000 claims abstract description 51
- 239000011347 resin Substances 0.000 claims abstract description 51
- 239000003208 petroleum Substances 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000376 reactant Substances 0.000 claims abstract description 8
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 229920001400 block copolymer Polymers 0.000 claims abstract description 4
- 239000012043 crude product Substances 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 4
- 229920002223 polystyrene Polymers 0.000 claims abstract description 4
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 105
- 238000007789 sealing Methods 0.000 claims description 101
- 239000000243 solution Substances 0.000 claims description 60
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000047 product Substances 0.000 claims description 24
- 239000002994 raw material Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 4
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 16
- 239000007788 liquid Substances 0.000 description 15
- 239000003292 glue Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000012466 permeate Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 210000002700 urine Anatomy 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012792 core layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/834—Mixing in several steps, e.g. successive steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71715—Feed mechanisms characterised by the means for feeding the components to the mixer using buckets, cups or open containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/36—Mixing of ingredients for adhesives or glues; Mixing adhesives and gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a processing method of a structural adhesive with a water absorption function, which comprises the following steps: a. adding naphthenic oil into a stirring barrel, and starting stirring; b. adding the prepared C5 modified hydrogenated petroleum resin, introducing nitrogen, vacuumizing, and continuously stirring until the C5 modified hydrogenated petroleum resin is completely dissolved; c. after the C5 modified hydrogenated petroleum resin was completely dissolved, the mixture was mixed at a ratio of 1: 1.2, adding a mixture of styrene-butadiene-styrene block copolymer (SBS) and polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), sequentially adding ethylene-vinyl acetate copolymer and antioxidant, introducing nitrogen, vacuumizing, and reacting until the reactants are completely melted; d. under the condition of stirring, controlling the temperature to be 155 ℃, adding the prepared modified acrylic acid type high-molecular water-absorbing resin and the residual C5 modified hydrogenated petroleum resin, introducing nitrogen and vacuumizing, and forming a crude product when reactants in the reaction kettle are in a molten state; e. stopping stirring, controlling the outlet temperature at 160 ℃, standing for 3min, and discharging; f. filtering, cooling and packaging.
Description
Technical Field
The invention belongs to the technical field of polymer adhesives, and particularly relates to a processing method of a structural adhesive with a water absorption function.
Background
Structural adhesives are widely used in the disposable hygiene industry because of their good adhesion and high cost performance, for example: women sanitary articles, paper diapers, medical articles and the like; all components of the disposable sanitary product, such as the inner surface layer, the absorption core layer and the base fabric of the paper diaper, need to be adhered through structural adhesive to realize the structural function; urine can be contacted with paper diapers and sanitary towels in disposable sanitary products, although the paper diapers and the sanitary towels are internally provided with super absorbent resin for absorbing the urine, the salt content in the urine can reduce the water absorption of the common super absorbent resin, and the super absorbent resin in the sanitary products is limited, so that the urine which cannot be absorbed can slowly permeate into the outer surface layer when the super absorbent resin is saturated; at this time, if the structural adhesive adhering the inner and outer layers does not have good water absorbability, urine may permeate through the outer surface to contact the skin of the human body.
All components are required to be mixed together when the structural adhesive is produced, air is easily mixed into the solution when the solution is stirred and mixed, bubbles are generated in the glue, and the quality of the glue is influenced; multiple raw materials need to be added in the production process of the structural adhesive, and the worker needs to add ingredients in sequence, so that the worker is required to keep beside the stirring equipment all the time, the labor force is bound, the worker resources are wasted, and the feeding precision cannot be controlled because the feeding is manually carried out every time.
Disclosure of Invention
The invention provides a processing method of a structural adhesive with a water absorption function, aiming at overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing method of a structural adhesive with a water absorption function comprises the following steps:
a. adding naphthenic oil into a stirring barrel, heating to 125 ℃, and starting stirring;
b. adding the prepared C5 modified hydrogenated petroleum resin, introducing nitrogen, vacuumizing, heating to 135 ℃, and continuously stirring until the C5 modified hydrogenated petroleum resin is completely dissolved;
c. after the C5 modified hydrogenated petroleum resin was completely dissolved, the mixture was mixed at a ratio of 1: 1.2, adding a mixture of styrene-butadiene-styrene block copolymer (SBS) and polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), sequentially adding ethylene-vinyl acetate copolymer and antioxidant, introducing nitrogen, vacuumizing, and reacting until the reactants are completely melted;
d. under the condition of stirring, controlling the temperature to be 155 ℃, adding the prepared modified acrylic acid type high-molecular water-absorbing resin and the residual C5 modified hydrogenated petroleum resin, introducing nitrogen and vacuumizing, and forming a crude product when reactants in the reaction kettle are in a molten state;
e. stopping stirring, controlling the outlet temperature at 160 ℃, standing for 3min, and discharging;
f. filtering, cooling and packaging;
the stirring barrel in the step a comprises a barrel body and a barrel cover, a heating block is arranged in the barrel body, a transmission shaft penetrates through the barrel cover, a plurality of stirring rods are arranged on the transmission shaft, a driving motor is arranged on the barrel cover, a transmission wheel matched with the transmission shaft is arranged on an output shaft of the driving motor, a first connecting plate is rotatably connected onto the barrel cover, a plurality of first through holes are formed in the first connecting plate, a groove matched with the first through holes is further formed in the first connecting plate, a second through hole matched with the first through holes is formed in the barrel cover, a storage barrel is arranged in the groove, a sealing plate is arranged on the storage barrel, a nitrogen generator is arranged on the barrel cover, and the nitrogen generator is communicated with the interior of the barrel body; a first mounting plate is arranged on the side wall of the barrel body, an air pump is arranged on the first mounting plate, and the air pump is communicated with the interior of the barrel body; when the structural adhesive is processed, raw materials required for producing the structural adhesive are respectively placed into different storage barrels, the storage barrels are placed in the grooves in an inverted mode, the storage barrels filled with corresponding solutions are sequentially placed according to the feeding sequence, the first connecting plate drives the storage barrels to rotate, the storage barrels filled with naphthenic oil are rotated to the positions above the second through holes, the sealing plates are opened, the naphthenic oil in the storage barrels is poured into the barrels, the heating blocks heat the solution in the barrels, the driving motor drives the transmission shaft to rotate, the solution in the barrels is stirred, then the sealing plates on the storage barrels above the second through holes are closed, the first connecting plate rotates again, the first connecting plate drives the storage barrels to continue to rotate, the storage barrels filled with the C5 modified hydrogenated petroleum resin are rotated to the positions above the second through holes, the sealing plates are opened, and the C5 modified hydrogenated petroleum resin is poured into the barrels; the nitrogen generator is used for introducing nitrogen into the barrel body, the air pump is used for pumping out air in the barrel body, a vacuum environment is formed in the barrel body, the heating block is used for continuously heating, and the stirring rod is used for stirring the solution to completely dissolve the C5 modified hydrogenated petroleum resin; and (3) adding the rest components into the barrel in sequence according to the steps to fully dissolve and mix the components to prepare the crude structural adhesive.
Under the formula of the disposable sanitary product, the water absorption capacity of the disposable sanitary product can be increased, and the good water absorption can be still kept when the liquid containing salt is absorbed, so that the liquid can be rapidly absorbed by the water absorption inner layer of the sanitary product, the contact time between the skin and the liquid is reduced, and the sanitary product is prevented from being contacted with the skin due to the fact that the liquid permeates into the outer surface layer due to the fact that the sanitary product absorbs supersaturation of the liquid; the order and the addition amount of the components added into the stirring barrel are controlled in a mode of putting the components into the storage barrel in advance, so that errors in the step of adding materials are avoided, the error rate in the production process of the structural adhesive is reduced, and the quality of the finished structural adhesive is ensured; the storage barrels filled with various components are rotated one by one to the position above the second through hole in a rotating mode of the first connecting plate, so that the solution in the storage barrels is added into the stirring barrel, the automation degree in the structural adhesive processing process is improved, the error rate is reduced, and the production efficiency of the structural adhesive is improved; under the mutually supporting of first through-hole and second through-hole, can add the component under the condition that need not to open the bung in the staving, reduce reinforced degree of difficulty, avoid reinforced in-process to have too much air to enter into the staving in to the production of structure glue cause the influence, reduce the bubble in the structure glue, guarantee the structure and glue finished product quality, make the better mixing of each component together, guarantee that the finished product viscidity and the hydroscopicity are glued to the structure.
The preparation method of the C5 modified hydrogenated petroleum resin comprises the following steps: adding C5 cyclopentadiene into 20 parts of octane solvent, simultaneously adding a palladium catalyst, introducing hydrogen at the speed of 10ml/min, reacting for 15h, removing the catalyst by filtering, and collecting 180-184 ℃ fraction from the distillation filtrate to obtain a raw material A for later use; adding an aluminum trichloride catalyst and a solvent (a mixed solution of cyclohexane and xylene) into a high-pressure reaction kettle, dropwise adding a raw material A and butadiene, reacting at a constant temperature for 2 hours after dropwise adding, then adding methanol to remove the catalyst, and washing with deionized water to obtain C5 hydrogenated petroleum resin; maleic anhydride is added into the prepared C5 petroleum resin, and the modified C5 hydrogenated petroleum resin is obtained after the reaction for 2 hours at the temperature of 200 ℃.
The preparation method of the modified acrylic acid type high-molecular water-absorbing resin comprises the following steps: adding polyvinyl alcohol and water into a reaction kettle, heating to 75 ℃, stirring for dissolving, stopping heating after PVA is completely dissolved, standing, cooling to room temperature, and introducing nitrogen; adding starch, stirring at a rotating speed of 100 r/min, gelatinizing at 65 ℃ for 20min, cooling to room temperature, adding hydroquinone and sodium persulfate, stirring for 10min, and adding an acrylic acid solution neutralized by a sodium hydroxide solution; reacting at 55 ℃ for 1h, heating to 65 ℃ for reacting for 1.5h, finishing the reaction, drying, crushing and screening to obtain the modified acrylic acid type high polymer water-absorbent resin.
The stirring rate in step a is 80 rpm.
The sealing plate is provided with a convex block, the bottom of the sealing plate is provided with a fixed block matched with the convex block, the fixed block is provided with a first movable groove matched with the convex block, the convex block is provided with a first sliding groove, and the inner wall of the first movable groove is provided with a first sliding block matched with the first sliding groove; a mounting groove is formed in the side wall of the second through hole, a through groove matched with the mounting groove is formed in the side wall of the first through hole, an air cylinder is arranged in the mounting groove, and a clamping jaw assembly matched with the fixing block is arranged on a piston rod of the air cylinder; after the solution is filled into the storage barrel, the sealing plate is covered, the fixing block is pushed onto the sealing plate, the sealing plate is fixed, the storage barrel is turned over, the storage barrel is placed in the groove in an inverted mode, the first connecting plate rotates to drive the material carrying barrel to rotate, the material carrying barrel filled with the structural adhesive component moves to the position above the second through hole, the fixing block is placed in the second through hole, the air cylinder pushes the clamping jaw assembly to move forwards, the clamping jaw assembly is matched with the fixing block, after the clamping jaw assembly clamps the fixing block, the air cylinder drives the piston rod to move backwards, the clamping assembly drives the fixing block to move, the fixing block is moved out of the sealing plate, the solution in the storage barrel pushes the sealing door open under the gravity, the solution in the storage barrel falls from the second through hole, and the solution is added into the barrel body to be stirred; under the action of the fixing block, the matching effect of the sealing plate and the storage vat is improved, the storage vat is well sealed, and the situation that the solution is poured out of the storage vat when the storage vat is turned over is avoided; the sealing plate is stably arranged at the position of the opening of the storage barrel by the fixing block, so that the bearing capacity of the sealing plate is increased, and the sealing plate can support the solution in the storage barrel when the storage barrel is placed upside down; under the action of the clamping jaw assembly, the fixing block is automatically taken down from the sealing plate after the storage barrel moves into the second through hole, so that the solution in the storage barrel directly drops under the self gravity, and the feeding difficulty in the glue production process is reduced; under the self gravity of the solution, the sealing plate is pushed to turn downwards, an inclined plane is formed at the bottom of the storage barrel, the residue of the solution in the storage barrel is reduced, the solution in the storage barrel falls better, and the waste of the material is reduced; under logical groove setting, provide the headspace for the removal of clamping jaw assembly, produce the collision with first through-hole inner wall when avoiding clamping jaw assembly to remove, guarantee the stability of clamping jaw assembly operation.
A supporting block is arranged on the inner wall of the second through hole, a first movable cavity is arranged on the supporting block, a first sleeve is arranged in the first movable cavity, a second sleeve penetrates through the first sleeve, a second sliding groove is arranged on the inner wall of the first movable cavity, and a second sliding block matched with the second sliding groove is arranged on the side wall of the first sleeve; a second movable cavity communicated with the first movable cavity is arranged on one side of the first movable cavity, an air conveying cavity is arranged on the side wall of the second movable cavity, and the nitrogen generator is connected with the air conveying cavity through an air conveying pipe; the second movable cavity is communicated with the interior of the barrel body, a sealing block is rotatably connected to the inner wall of the second movable cavity, a first supporting rod is arranged below the sealing block, and an arc-shaped elastic sheet is arranged on the first supporting rod; when the solution in the storage barrel is poured into the barrel body, the nitrogen generator feeds nitrogen into the gas transmission cavity, the sealing block seals the second movable cavity, the nitrogen entering the second movable cavity flows into the first movable cavity, the airflow pushes the first sleeve and the second sleeve to move upwards, the top of the second sleeve is contacted with the bottom surface of the sealing plate, the sealing plate is pushed to turn upwards, the sealing plate is rotated to the horizontal position, the sealing plate seals the storage barrel, and the sealing plate is reset; after the second sleeve moves to the highest point, the second movable cavity is continuously ventilated, the pressure in the second movable cavity is increased to push the sealing block to rotate, so that the second movable cavity is communicated with the interior of the barrel body, nitrogen is introduced into the barrel body, and a good environment is provided for solution mixing; thrust is provided for the sealing plate under the action of the first sleeve and the second sleeve, so that the sealing plate can automatically reset after being opened, and the blocking of the sealing plate in an inclined state to the rotation of the first connecting plate is avoided; under the mutual matching of the arc-shaped elastic sheet and the sealing block, the second movable cavity is temporarily closed, so that the air pressure in the second movable cavity is increased, the first sleeve and the second sleeve are pushed to extend out, and the resetting operation of the sealing plate is completed; under the action of the arc-shaped elastic sheet, the resetting of the sealing plate is completed while nitrogen is filled into the barrel body, other driving pieces are not needed, the structure of the stirring barrel is simplified, and the maintenance cost of the stirring barrel is reduced; under the mutually supporting of second slider and second spout, do the injecing to the motion stroke of first sleeve pipe, avoid first sleeve pipe to deviate from first activity intracavity to utilize the air pressure effect to promote the upset of sealing block, fill the nitrogen gas in the second activity intracavity into the staving.
The invention has the following advantages: under the formula of the disposable sanitary product, the water absorption capacity of the disposable sanitary product can be increased, and the good water absorption can be still kept when the liquid containing salt is absorbed, so that the liquid can be rapidly absorbed by the water absorption inner layer of the sanitary product, the contact time between the skin and the liquid is reduced, and the sanitary product is prevented from being contacted with the skin due to the fact that the liquid permeates into the outer surface layer due to the fact that the sanitary product absorbs supersaturation of the liquid; under the cooperation of first connecting plate and storage vat, promote glue processing automation, reduce reinforced degree of difficulty, avoid reinforced in-process to have too much air to enter into the staving in to the production that the structure was glued and cause the influence, reduce the bubble in the structure is glued, guarantee the structure and glue finished product quality, make the better mixing of each component together, guarantee that the structure glues off-the-shelf viscidity and hydroscopicity.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a first cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of fig. 2 at B.
FIG. 5 is a second cross-sectional view of the present invention.
Fig. 6 is an enlarged view of fig. 5 at C.
Fig. 7 is a third schematic cross-sectional view of the present invention.
Fig. 8 is an enlarged view of fig. 7 at D.
Fig. 9 is an enlarged view of fig. 8 at E.
Fig. 10 is a cross-sectional view of the fourth embodiment of the present invention.
Fig. 11 is an enlarged view of fig. 10 at F.
Fig. 12 is an enlarged view at G in fig. 10.
Fig. 13 is an enlarged view of fig. 12 at H.
Detailed Description
A processing method of a structural adhesive with a water absorption function comprises the following steps: a. adding naphthenic oil into a stirring barrel, heating to 125 ℃, and starting stirring; b. adding the prepared C5 modified hydrogenated petroleum resin, introducing nitrogen, vacuumizing, heating to 135 ℃, and continuously stirring until the C5 modified hydrogenated petroleum resin is completely dissolved; c. after the C5 modified hydrogenated petroleum resin was completely dissolved, the mixture was mixed at a ratio of 1: 1.2, adding a mixture of styrene-butadiene-styrene block copolymer (SBS) and polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), sequentially adding ethylene-vinyl acetate copolymer and antioxidant, introducing nitrogen, vacuumizing, and reacting until the reactants are completely melted; d. under the condition of stirring, controlling the temperature to be 155 ℃, adding the prepared modified acrylic acid type high-molecular water-absorbing resin and the residual C5 modified hydrogenated petroleum resin, introducing nitrogen and vacuumizing, and forming a crude product when reactants in the reaction kettle are in a molten state; e. stopping stirring, controlling the outlet temperature at 160 ℃, standing for 3min, and discharging; f. filtering, cooling and packaging; the preparation method of the C5 modified hydrogenated petroleum resin comprises the following steps: adding C5 cyclopentadiene into 20 parts of octane solvent, simultaneously adding a palladium catalyst, introducing hydrogen at the speed of 10ml/min, reacting for 15h, removing the catalyst by filtering, and collecting 180-184 ℃ fraction from the distillation filtrate to obtain a raw material A for later use; adding an aluminum trichloride catalyst and a solvent (a mixed solution of cyclohexane and xylene) into a high-pressure reaction kettle, dropwise adding a raw material A and butadiene, reacting at a constant temperature for 2 hours after dropwise adding, then adding methanol to remove the catalyst, and washing with deionized water to obtain C5 hydrogenated petroleum resin; adding maleic anhydride into the prepared C5 petroleum resin, and reacting for 2h at 200 ℃ to obtain modified C5 hydrogenated petroleum resin; the preparation method of the modified acrylic acid type high-molecular water-absorbing resin comprises the following steps: adding polyvinyl alcohol and water into a reaction kettle, heating to 75 ℃, stirring for dissolving, stopping heating after PVA is completely dissolved, standing, cooling to room temperature, and introducing nitrogen; adding starch, stirring at a rotating speed of 100 r/min, gelatinizing at 65 ℃ for 20min, cooling to room temperature, adding hydroquinone and sodium persulfate, stirring for 10min, and adding an acrylic acid solution neutralized by a sodium hydroxide solution; reacting at 55 ℃ for 1h, heating to 65 ℃ for reacting for 1.5h, finishing the reaction, drying, crushing and screening to obtain the modified acrylic acid type high polymer water-absorbent resin; the stirring rate in step a is 80 rpm.
As shown in fig. 1-13, the mixing tank in step a comprises a tank body 1 and a tank cover 2, a heating block is arranged in the barrel body 1, a transmission shaft 13 is arranged on the barrel cover 2 in a penetrating way, a plurality of stirring rods are arranged on the transmission shaft 13, a driving motor is arranged on the barrel cover 2, a driving wheel matched with the transmission shaft 13 is arranged on an output shaft of the driving motor, the barrel cover 2 is rotatably connected with a first connecting plate 3, a plurality of first through holes are arranged on the first connecting plate 3, the first connecting plate 3 is also provided with a groove matched with the first through hole, the barrel cover 2 is provided with a second through hole matched with the first through hole, a storage barrel 4 is arranged in the groove, a sealing plate 41 is arranged on the storage barrel 4, a nitrogen generator 22 is arranged on the barrel cover 2, and the nitrogen generator is a nitrogen generator in the prior art; the nitrogen generator 22 is communicated with the interior of the barrel body 1; a first mounting plate 11 is arranged on the side wall of the barrel body 1, an air pump 12 is arranged on the first mounting plate 11, and the air pump 12 is communicated with the interior of the barrel body 1; when the structural adhesive is processed, raw materials required for producing the structural adhesive are respectively put into different storage barrels 4, the storage barrels 4 are inversely put into the grooves, the storage barrels 4 filled with corresponding solutions are sequentially placed according to the feeding sequence, the first connecting plate 3 drives the storage barrels 4 to rotate, the storage barrels 4 filled with naphthenic oil are rotated to the position above the second through hole, the sealing plate 41 is opened, the naphthenic oil in the storage barrels 4 is poured into the barrel body 1, the heating block heats the solution in the barrel body 1, the driving motor drives the transmission shaft 13 to rotate, stirring the solution in the barrel body 1, then closing a sealing plate 41 on a storage barrel 4 above the second through hole, rotating the first connecting plate 3 again to enable the first connecting plate 3 to drive the storage barrel 4 to continue rotating, rotating the storage barrel 4 filled with the C5 modified hydrogenated petroleum resin to the position above the second through hole, opening the sealing plate 41, and pouring the C5 modified hydrogenated petroleum resin into the barrel body 1; the nitrogen generator is used for introducing nitrogen into the barrel body 1, the air pump 12 is used for pumping out air in the barrel body 1, a vacuum environment is formed in the barrel body 1, the heating block is continuously heated, and the stirring rod is used for stirring the solution to completely dissolve the C5 modified hydrogenated petroleum resin; and (3) sequentially adding the rest components into the barrel body 1 according to the steps, and fully dissolving and mixing the components to prepare a crude structural adhesive.
Under the formula of the disposable sanitary product, the water absorption capacity of the disposable sanitary product can be increased, and the good water absorption can be still kept when the liquid containing salt is absorbed, so that the liquid can be rapidly absorbed by the water absorption inner layer of the sanitary product, the contact time between the skin and the liquid is reduced, and the sanitary product is prevented from being contacted with the skin due to the fact that the liquid permeates into the outer surface layer due to the fact that the sanitary product absorbs supersaturation of the liquid; the order and the addition amount of the components added into the stirring barrel are controlled in a mode of putting the components into the storage barrel in advance, so that errors in the step of adding materials are avoided, the error rate in the production process of the structural adhesive is reduced, and the quality of the finished structural adhesive is ensured; the storage barrels filled with various components are rotated one by one to the position above the second through hole in a rotating mode of the first connecting plate, so that the solution in the storage barrels is added into the stirring barrel, the automation degree in the structural adhesive processing process is improved, the error rate is reduced, and the production efficiency of the structural adhesive is improved; under the mutually supporting of first through-hole and second through-hole, can add the component under the condition that need not to open the bung in the staving, reduce reinforced degree of difficulty, avoid reinforced in-process to have too much air to enter into the staving in to the production of structure glue cause the influence, reduce the bubble in the structure glue, guarantee the structure and glue finished product quality, make the better mixing of each component together, guarantee that the finished product viscidity and the hydroscopicity are glued to the structure.
The barrel cover is provided with a second movable groove matched with the first connecting plate, and after the material loading barrel is arranged in the groove, the bottom surface of the material loading barrel is spaced from the top surface of the second movable groove; a second supporting rod is arranged on the barrel cover, a second mounting plate is arranged on the second supporting rod, the transmission shaft penetrates through the second mounting plate, a first limiting plate is arranged at the top of the transmission shaft, a connecting frame 131 is sleeved on the transmission shaft, a connecting disc 132 is arranged at the bottom of the connecting frame, a first supporting spring 133 is arranged at the bottom of the connecting frame, a first electromagnet is arranged on the second mounting plate, a rubber pad is arranged at the bottom of the connecting disc, and a transmission plate matched with the connecting disc is arranged on the first connecting plate; when the material loading barrel is arranged on the first connecting plate, the first electromagnet is electrified to generate magnetic force, the connecting frame is attracted to move downwards under the action of the first electromagnet, the connecting frame and the connecting disc move downwards together, the bottom of the connecting disc is contacted with the transmission plate, the first connecting plate is driven to rotate together under the action of the connecting disc, the first connecting plate drives the material storage barrel to rotate, and the material storage barrels are rotated one by one to be above the second through holes so as to add raw materials into the barrel body; under the arrangement of the rubber pad, the contact effect of the connecting disc and the transmission plate is increased, so that the first connecting plate is driven to rotate under the action of the connecting disc; control is made to the turned angle of first connecting plate through the circular telegram time to first electro-magnet to make accurate arranging the second through-hole top in of storage vat, add the staving with the raw materials in, reduce the waste of raw materials.
A second limiting plate 31 is arranged on the side wall of the first connecting plate, a connecting block 25 is arranged on the barrel cover, a through cavity matched with the second limiting plate is arranged on the connecting block, second movable grooves are respectively arranged on the top surface and the bottom surface of the through cavity, a limiting spring 251 is arranged in the second movable groove, a limiting block 252 is arranged at one end of the limiting spring, a limiting hole matched with the limiting block is arranged on the second limiting plate, and a cambered surface is arranged on the side wall of the limiting block; when connection pad and driving plate contact drive first connecting plate and rotate, first connecting plate drives the same rotation of second limiting plate, the second limiting plate rotates and enters into logical intracavity, push into spacing downthehole with the stopper under spacing spring action, play the fixed action to first connecting plate, avoid first connecting plate to continue forward rotation under inertial action, make and carry the storage bucket and stop promptly after rotating to second through-hole top, so that with the storage vat in the whole staving of adding of raw materials, avoid causing the waste of raw materials.
A bump is arranged on the sealing plate 41, a fixed block 42 matched with the bump is arranged at the bottom of the sealing plate 41, a first movable groove matched with the bump is arranged on the fixed block 42, a first sliding groove is arranged on the bump, and a first sliding block matched with the first sliding groove is arranged on the inner wall of the first movable groove; an installation groove is formed in the side wall of the second through hole, a through groove matched with the installation groove is formed in the side wall of the first through hole, an air cylinder 21 is arranged in the installation groove, and a clamping jaw assembly matched with the fixing block 42 is arranged on a piston rod of the air cylinder 21; after the solution is filled into the storage barrel 4, the sealing plate 41 is covered, the fixing block 42 is pushed onto the sealing plate 41, the sealing plate 41 is fixed, the storage barrel 4 is turned over, the storage barrel 4 is placed in the groove in an inverted mode, the first connecting plate 3 rotates to drive the material carrying barrel 4 to rotate, the material carrying barrel 4 filled with the structural adhesive component moves to the position above the second through hole, the fixing block 42 is placed in the second through hole, the air cylinder 21 pushes the clamping jaw assembly to move forwards, the clamping jaw assembly is matched with the fixing block 42, after the clamping jaw assembly clamps the fixing block 42, the air cylinder 21 drives the piston rod to move backwards, the clamping assembly drives the fixing block 42 to move, the fixing block 42 is moved out of the sealing plate 41, the sealing door 41 is pushed open by the solution in the storage barrel 4 under the gravity, the solution in the storage barrel 4 drops from the second through hole, and the solution is added into the barrel body 1 to be stirred; under the action of the fixing block, the matching effect of the sealing plate and the storage vat is improved, the storage vat is well sealed, and the situation that the solution is poured out of the storage vat when the storage vat is turned over is avoided; the sealing plate is stably arranged at the position of the opening of the storage barrel by the fixing block, so that the bearing capacity of the sealing plate is increased, and the sealing plate can support the solution in the storage barrel when the storage barrel is placed upside down; under the action of the clamping jaw assembly, the fixing block is automatically taken down from the sealing plate after the storage barrel moves into the second through hole, so that the solution in the storage barrel directly drops under the self gravity, and the feeding difficulty in the glue production process is reduced; under the self gravity of the solution, the sealing plate is pushed to turn downwards, an inclined plane is formed at the bottom of the storage barrel, the residue of the solution in the storage barrel is reduced, the solution in the storage barrel falls better, and the waste of the material is reduced; under logical groove setting, provide the headspace for the removal of clamping jaw assembly, produce the collision with first through-hole inner wall when avoiding clamping jaw assembly to remove, guarantee the stability of clamping jaw assembly operation.
A third movable cavity is arranged on the fixed block, a first through hole and a second through hole are arranged on the side wall of the third movable cavity, a limiting rod 44 penetrates through the first through hole, a push rod 43 penetrates through the second through hole, the first through hole is arranged on the side wall of one side of the third movable cavity, the second through hole is arranged on the side wall of the other side of the third movable cavity, and a limiting groove matched with the limiting rod is arranged on the inner wall of the first sliding groove; a third sliding groove is formed in the side wall of the limiting rod, a third sliding block is arranged in the third sliding groove, a fourth sliding groove is formed in the push rod, a fourth sliding block is arranged in the fourth sliding groove, the third sliding block and the fourth sliding block are connected through a first connecting rod 45, the first connecting rod is rotatably connected in the third movable cavity, and a reset spring is arranged at one end of the push rod; the raw materials is packed into in the storage vat back, cover the closing plate, the closing plate rotates to the horizontality, promote the push rod toward the fixed block direction, make the gag lever post enter into the third activity intracavity, push the fixed block into on the closing plate, the gag lever post moves to spacing groove one side, the release push rod, push the push rod toward the outer movement under the reset spring effect, make the gag lever post insert the spacing inslot, fix the fixed block on the closing plate, promote the cooperation effect of fixed block and closing plate, so that play sealed effect to the storage vat under the cooperation of fixed block and closing plate.
The clamping jaw assembly comprises a movable block 23 arranged on the piston rod of the air cylinder, a third movable groove is arranged on the movable block, a fourth movable cavity communicated with the third movable groove is arranged on one side of the third movable groove, a fixed rod 231 is arranged in the third movable groove, a second connecting rod 232 is hinged on the fixed rod, a second connecting plate 233 is hinged on the second connecting rod, and a second electromagnet matched with the second connecting plate is arranged on the inner wall of the fourth movable cavity; after the storage vat moves to in the second through-hole, cylinder drive movable block moves forward, the movable block drives the dead lever and moves forward, the dead lever moves to the fixed block both sides, the second electro-magnet circular telegram, the second connecting plate moves toward second electro-magnet direction, the second connecting rod rotates around the tie point, make the dead lever be close to each other, the dead lever contacts with the push rod, promote the push rod and move toward third activity intracavity, make the push rod enter into third activity intracavity, the dead lever presss from both sides the fixed block tightly the back, cylinder drive movable block moves, the movable block drives the fixed block and removes, pull down the fixed block from the closing plate, so that pour the solution in the storage vat into in the staving.
The second movable groove provides a reserved space for the fixing block, and the fixing block is prevented from rubbing the top surface of the barrel cover when rotating along with the first connecting plate.
A supporting block 26 is arranged on the inner wall of the second through hole, a first movable cavity is arranged on the supporting block 26, a first sleeve 261 is arranged in the first movable cavity, a second sleeve 262 penetrates through the first sleeve 261, a second sliding groove is arranged on the inner wall of the first movable cavity, and a second sliding block matched with the second sliding groove is arranged on the side wall of the first sleeve 261; a second movable cavity communicated with the first movable cavity is arranged on one side of the first movable cavity, an air conveying cavity is arranged on the side wall of the second movable cavity, and the nitrogen generator is connected with the air conveying cavity through an air conveying pipe 24; the second movable cavity is communicated with the interior of the barrel body 1, a sealing block 27 is rotatably connected to the inner wall of the second movable cavity, a first supporting rod 28 is arranged below the sealing block 27, and an arc-shaped elastic sheet 282 is arranged on the first supporting rod 28; after the solution in the storage barrel 4 is poured into the barrel body 1, the nitrogen generator introduces nitrogen into the gas transmission cavity, the sealing block 27 seals the second movable cavity, the nitrogen entering the second movable cavity flows into the first movable cavity, the airflow pushes the first sleeve 261 and the second sleeve 262 to move upwards, the top of the second sleeve 262 is contacted with the bottom surface of the sealing plate 41, the sealing plate 41 is pushed to turn upwards, the sealing plate 41 rotates to the horizontal position, and the sealing plate 41 seals the storage barrel 4 to reset the sealing plate 41; after the second sleeve 262 moves to the highest point, the second movable cavity is continuously ventilated, the pressure in the second movable cavity is increased to push the sealing block 27 to rotate, so that the second movable cavity is communicated with the interior of the barrel body 1, nitrogen is introduced into the barrel body 1, and a good environment is provided for solution mixing; thrust is provided for the sealing plate under the action of the first sleeve and the second sleeve, so that the sealing plate can automatically reset after being opened, and the blocking of the sealing plate in an inclined state to the rotation of the first connecting plate is avoided; under the mutual matching of the arc-shaped elastic sheet and the sealing block, the second movable cavity is temporarily closed, so that the air pressure in the second movable cavity is increased, the first sleeve and the second sleeve are pushed to extend out, and the resetting operation of the sealing plate is completed; under the action of the arc-shaped elastic sheet, the resetting of the sealing plate is completed while nitrogen is filled into the barrel body, other driving pieces are not needed, the structure of the stirring barrel is simplified, and the maintenance cost of the stirring barrel is reduced; under the mutually supporting of second slider and second spout, do the injecing to the motion stroke of first sleeve pipe, avoid first sleeve pipe to deviate from first activity intracavity to utilize the air pressure effect to promote the upset of sealing block, fill the nitrogen gas in the second activity intracavity into the staving.
The first support rod is provided with a fifth sliding chute, a fifth sliding block 281 is arranged in the fifth sliding chute, the number of the fifth sliding blocks is two, two ends of the arc-shaped elastic sheet are respectively arranged on the two fifth sliding blocks, the inner wall of the fifth sliding chute is provided with a second support spring 283, and the second support spring is arranged on one side of the fifth sliding block; a third electromagnet is also arranged on the inner wall of the fifth sliding chute; the arc-shaped elastic sheet provides supporting force for the sealing block, so that the sealing block is in a horizontal state under normal conditions, a sealing effect is achieved on the second movable cavity, after the sleeve pipe pushes the sealing plate to reset, air pressure in the second movable cavity is increased, the sealing block is pushed to turn downwards under the action of the air pressure, the arc-shaped elastic sheet is stressed and deformed, and nitrogen directly enters the barrel body; after the sealing plate is reset, the air cylinder pushes the movable block to move forwards, so that the movable block drives the fixed block to move forwards, and the fixed block is installed on the sealing plate to complete the installation of the fixed block; after the fixed block is installed, the third electromagnet is electrified to generate magnetic force, the fifth sliding block moves in the fifth sliding groove, the arc-shaped elastic sheet is pulled to continuously deform, and nitrogen is introduced into the barrel body; when enough nitrogen is introduced, the nitrogen generator stops working, the sealing block is still in an opening state under the action of the third electromagnet, the sleeve moves downwards under the action of gravity, the sleeve enters the supporting block again to complete resetting of the sleeve, then the third electromagnet is powered off, the fifth sliding block pushes the arc-shaped elastic sheet to bend, the sealing block is restored to a horizontal state, and resetting of the sealing block is completed.
When the structural adhesive is processed, solutions for producing the structural adhesive are respectively added into different storage barrels, the storage barrels are sequentially placed on a first connecting plate, a first electromagnet is electrified to rotate the first storage barrel to be above a second through hole, a cylinder pushes a movable block to move, a fixed block is clamped by a fixed rod and is taken down from a sealing plate, the sealing plate is pushed away by the solutions in the storage barrels under the action of gravity to drop, the solutions directly drop in the barrels, the solutions in the barrels are heated by a heating block, a driving motor drives a transmission shaft to rotate, and the solutions in the barrels are stirred; after the solution in the storage barrel is filled, the nitrogen generator feeds nitrogen into the second movable cavity, the sleeve is pushed to move upwards by air pressure, the sleeve pushes the sealing plate to turn over, the sealing plate turns over to be in a horizontal state, and the cylinder pushes the fixing block to move forwards to complete the resetting of the fixing block; continuously introducing nitrogen into the second movable cavity, pushing the sealing block to open under the action of air pressure, directly introducing the nitrogen into the barrel body, and vacuumizing the barrel body by using an air pump to finish the treatment of the interior of the stirring barrel; repeating the above actions, and sequentially adding the solution in the storage vat into the vat body to directly complete the preparation of the structural adhesive; the air inlet time in the second movable cavity can be controlled by controlling the nitrogen generator so as to control the discharge amount of the storage barrel.
Claims (4)
1. A processing method of a structural adhesive with a water absorption function is characterized by comprising the following steps: the method comprises the following steps:
a. adding naphthenic oil into a stirring barrel, heating to 125 ℃, and starting stirring;
b. adding the prepared C5 modified hydrogenated petroleum resin, introducing nitrogen, vacuumizing, heating to 135 ℃, and continuously stirring until the C5 modified hydrogenated petroleum resin is completely dissolved;
c. after the C5 modified hydrogenated petroleum resin was completely dissolved, the mixture was mixed at a ratio of 1: 1.2, adding a mixture of styrene-butadiene-styrene block copolymer (SBS) and polystyrene-polyethylene-polybutylene-polystyrene block copolymer (SEBS), sequentially adding ethylene-vinyl acetate copolymer and antioxidant, introducing nitrogen, vacuumizing, and reacting until the reactants are completely melted;
d. under the condition of stirring, controlling the temperature to be 155 ℃, adding the prepared modified acrylic acid type high-molecular water-absorbing resin and the residual C5 modified hydrogenated petroleum resin, introducing nitrogen and vacuumizing, and forming a crude product when reactants in the reaction kettle are in a molten state;
e. stopping stirring, controlling the outlet temperature at 160 ℃, standing for 3min, and discharging;
f. filtering, cooling and packaging;
the stirring barrel in the step a comprises a barrel body (1) and a barrel cover (2), a heating block is arranged in the barrel body (1), a transmission shaft (13) penetrates through the barrel cover (2), a plurality of stirring rods are arranged on the transmission shaft (13), a driving motor is arranged on the barrel cover (2), a driving wheel matched with the transmission shaft (13) is arranged on an output shaft of the driving motor, a first connecting plate (3) is rotatably connected on the barrel cover (2), a plurality of first through holes are formed in the first connecting plate (3), a groove matched with the first through holes is further formed in the first connecting plate (3), a second through hole matched with the first through holes is formed in the barrel cover (2), a material storage barrel (4) is arranged in the groove, a sealing plate (41) is arranged on the material storage barrel (4), and a nitrogen generator (22) is arranged on the barrel cover (2), the nitrogen generator (22) is communicated with the interior of the barrel body (1); a first mounting plate (11) is arranged on the side wall of the barrel body (1), an air pump (12) is arranged on the first mounting plate (11), and the air pump (12) is communicated with the interior of the barrel body (1); when the structural adhesive is processed, raw materials required for producing the structural adhesive are respectively put into different storage barrels (4), the storage barrels (4) are placed in the grooves in an inverted mode, the storage barrels (4) filled with corresponding solutions are sequentially placed according to the sequence of feeding, the first connecting plate (3) drives the storage barrels (4) to rotate, the storage barrels (4) filled with naphthenic oil rotate to the position above the second through hole, the sealing plates (41) are opened, the naphthenic oil in the storage barrels (4) is poured into the barrel body (1), the heating block heats the solution in the barrel body (1), the driving motor drives the transmission shaft (13) to rotate, the solution in the barrel body (1) is stirred, then the sealing plates (41) on the storage barrels (4) above the second through hole are closed, the first connecting plate (3) rotates again, the first connecting plate (3) drives the storage barrels (4) to continue to rotate, and the storage barrels (4) filled with C5 modified hydrogenated petroleum resin rotate to the position above the second through hole, opening the sealing plate (41), and pouring the C5 modified hydrogenated petroleum resin into the barrel body (1); the nitrogen generator is used for introducing nitrogen into the barrel body (1), the air pump (12) is used for pumping out air in the barrel body (1), a vacuum environment is formed in the barrel body (1), the heating block is used for continuously heating, and the stirring rod is used for stirring the solution to completely dissolve the C5 modified hydrogenated petroleum resin; adding the rest components into the barrel body (1) in sequence according to the steps, and fully dissolving and mixing the components to prepare a crude structural adhesive product;
a bump is arranged on the sealing plate (41), a fixed block (42) matched with the bump is arranged at the bottom of the sealing plate (41), a first movable groove matched with the bump is arranged on the fixed block (42), a first sliding groove is arranged on the bump, and a first sliding block matched with the first sliding groove is arranged on the inner wall of the first movable groove; an installation groove is formed in the side wall of the second through hole, a through groove matched with the installation groove is formed in the side wall of the first through hole, an air cylinder (21) is arranged in the installation groove, and a clamping jaw assembly matched with the fixing block (42) is arranged on a piston rod of the air cylinder (21); after the solution is filled into the storage barrel (4), the sealing plate (41) is covered, the fixing block (42) is pushed onto the sealing plate (41), the sealing plate (41) is fixed, the storage barrel (4) is turned over, the storage barrel (4) is placed in the groove upside down, the first connecting plate (3) rotates to drive the storage barrel (4) to rotate, the storage barrel (4) filled with the structural adhesive component moves to the position above the second through hole, the fixing block (42) is placed in the second through hole, the clamping jaw component is pushed forward by the air cylinder (21) to be matched with the fixing block (42), after the clamping jaw component clamps the fixing block (42), the air cylinder (21) drives the piston rod to move back, the clamping component drives the fixing block (42) to move, the fixing block (42) is moved out of the sealing plate (41), the solution in the storage barrel (4) pushes the sealing plate (41) open under the gravity, and the solution in the storage barrel (4) drops from the second through hole, adding the solution into the barrel body (1) for stirring treatment;
a supporting block (26) is arranged on the inner wall of the second through hole, a first movable cavity is arranged on the supporting block (26), a first sleeve (261) is arranged in the first movable cavity, a second sleeve (262) penetrates through the first sleeve (261), a second sliding groove is arranged on the inner wall of the first movable cavity, and a second sliding block matched with the second sliding groove is arranged on the side wall of the first sleeve (261); a second movable cavity communicated with the first movable cavity is arranged on one side of the first movable cavity, an air conveying cavity is arranged on the side wall of the second movable cavity, and the nitrogen generator is connected with the air conveying cavity through an air conveying pipe (24); the second movable cavity is communicated with the interior of the barrel body (1), a sealing block (27) is rotatably connected to the inner wall of the second movable cavity, a first supporting rod (28) is arranged below the sealing block (27), and an arc-shaped elastic sheet (282) is arranged on the first supporting rod (28); after the solution in the storage barrel (4) is poured into the barrel body (1), the nitrogen generator feeds nitrogen into the gas transmission cavity, the sealing block (27) seals the second movable cavity, the nitrogen entering the second movable cavity flows into the first movable cavity, the airflow pushes the first sleeve (261) and the second sleeve (262) to move upwards, the top of the second sleeve (262) is in contact with the bottom surface of the sealing plate (41), the sealing plate (41) is pushed to turn upwards, the sealing plate (41) is rotated to the horizontal position, the sealing plate (41) seals the storage barrel (4), and the sealing plate (41) is reset; after the second sleeve (262) moves to the highest point, the second movable cavity is continuously ventilated, the pressure in the second movable cavity is increased to push the sealing block (27) to rotate, so that the second movable cavity is communicated with the interior of the barrel body (1), nitrogen is introduced into the barrel body (1), and a good environment is provided for solution mixing;
a second movable groove matched with the first connecting plate (3) is formed in the barrel cover (2), and after the storage barrel (4) is arranged in the groove, a space exists between the bottom surface of the storage barrel (4) and the top surface of the second movable groove; a second supporting rod is arranged on the barrel cover (2), a second mounting plate is arranged on the second supporting rod, the transmission shaft (13) penetrates through the second mounting plate, a first limiting plate is arranged at the top of the transmission shaft (13), a connecting frame (131) is sleeved on the transmission shaft (13), a connecting disc (132) is arranged at the bottom of the connecting frame (131), a first supporting spring (133) is arranged at the bottom of the connecting frame (131), a first electromagnet is arranged on the second mounting plate, a rubber pad is arranged at the bottom of the connecting disc (132), and a transmission plate matched with the connecting disc (132) is arranged on the first connecting plate (3); a third movable cavity is arranged on the fixed block (42), a first through hole and a second through hole are arranged on the side wall of the third movable cavity, a limiting rod (44) penetrates through the first through hole, a push rod (43) penetrates through the second through hole, the first through hole is arranged on the side wall of one side of the third movable cavity, the second through hole is arranged on the side wall of the other side of the third movable cavity, and a limiting groove matched with the limiting rod (44) is arranged on the inner wall of the first sliding groove; a third sliding groove is formed in the side wall of the limiting rod (44), a third sliding block is arranged in the third sliding groove, a fourth sliding groove is formed in the push rod (43), a fourth sliding block is arranged in the fourth sliding groove, the third sliding block and the fourth sliding block are connected through a first connecting rod (45), the first connecting rod (45) is rotatably connected into the third movable cavity, and a reset spring is arranged at one end of the push rod (43); the clamping jaw assembly comprises a movable block (23) arranged on a piston rod of the air cylinder, a third movable groove is formed in the movable block (23), a fourth movable cavity communicated with the third movable groove is formed in one side of the third movable groove, a fixed rod (231) is arranged in the third movable groove, a second connecting rod (232) is hinged to the fixed rod (231), a second connecting plate (233) is hinged to the second connecting rod (232), and a second electromagnet matched with the second connecting plate is arranged on the inner wall of the fourth movable cavity; a fifth sliding chute is formed in the first supporting rod (28), fifth sliding blocks (281) are arranged in the fifth sliding chute, two groups of the fifth sliding blocks are arranged, two ends of the arc-shaped elastic sheet are respectively arranged on the two fifth sliding blocks (281), a second supporting spring (283) is arranged on the inner wall of the fifth sliding chute, and the second supporting spring (283) is arranged on one side of the fifth sliding block; and a third electromagnet is further arranged on the inner wall of the fifth sliding groove.
2. The method for processing the structural adhesive with the water absorption function according to claim 1, which is characterized in that: the preparation method of the C5 modified hydrogenated petroleum resin comprises the following steps: adding C5 cyclopentadiene into 20 parts of octane solvent, simultaneously adding a palladium catalyst, introducing hydrogen at the speed of 10ml/min, reacting for 15h, removing the catalyst by filtering, and collecting 180-184 ℃ fraction from the distillation filtrate to obtain a raw material A for later use; adding an aluminum trichloride catalyst and a solvent (a mixed solution of cyclohexane and xylene) into a high-pressure reaction kettle, dropwise adding a raw material A and butadiene, reacting at a constant temperature for 2 hours after dropwise adding, then adding methanol to remove the catalyst, and washing with deionized water to obtain C5 hydrogenated petroleum resin; maleic anhydride is added into the prepared C5 petroleum resin, and the modified C5 hydrogenated petroleum resin is obtained after the reaction for 2 hours at the temperature of 200 ℃.
3. The method for processing the structural adhesive with the water absorption function according to claim 1, which is characterized in that: the preparation method of the modified acrylic acid type high-molecular water-absorbing resin comprises the following steps: adding polyvinyl alcohol and water into a reaction kettle, heating to 75 ℃, stirring for dissolving, stopping heating after PVA is completely dissolved, standing, cooling to room temperature, and introducing nitrogen; adding starch, stirring at a rotating speed of 100 r/min, gelatinizing at 65 ℃ for 20min, cooling to room temperature, adding hydroquinone and sodium persulfate, stirring for 10min, and adding an acrylic acid solution neutralized by a sodium hydroxide solution; reacting at 55 ℃ for 1h, heating to 65 ℃ for reacting for 1.5h, finishing the reaction, drying, crushing and screening to obtain the modified acrylic acid type high polymer water-absorbent resin.
4. The method for processing the structural adhesive with the water absorption function according to claim 1, which is characterized in that: the stirring rate in step a is 80 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072428.6A CN110813112B (en) | 2019-11-05 | 2019-11-05 | Processing method of structural adhesive with water absorption function |
Applications Claiming Priority (1)
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